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Contract OI history

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Dec 18, 2026 EXPIRATION

FTNT $135.00 Put

FTNT261218P00135000

Latest saved OI358Oct 23, 2026
Last change+37vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
FTNT $135.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3581790 2026-10-09: 314 OI2026-10-13: 314 OI2026-10-14: 314 OI2026-10-15: 315 OI2026-10-16: 316 OI2026-10-21: 321 OI2026-10-23: 358 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

FTNT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing358+37
Oct 21, 2026321+5
Oct 16, 2026316+1
Oct 15, 2026315+1
Oct 14, 20263140
Oct 13, 20263140
Oct 09, 2026314No prior observation